Removing mildew from wood decks
Mildew can appear on wood decks if they are neglected and if they are poorly treated over longer periods of time. Also cracking may become a problems and the change of color. Mildew can be an alarm signal for you and you should take immediate action.
Tools and Materials:
- Common garden sprayer
- 3 quarts of water
- 1 quart of oxygen bleach
- 1/4 cup of ammonia-free liquid dishwasher detergent
- Water hose
- Wooden deck sander
- Oil-based wood sealer
- Scrub or brush
- Rubber gloves
- Face mask
One of the worst enemies of mildew is light and so it’s perfect if you can clean the deck in a sunny and warm day. The hot air and the sunlight will help the wood to dry and thus removing the mildew.
After the deck has been dries, use a pressurized nozzle on your water hose to try and remove the mildew if this doesn’t help, use a treatment solution. Be careful to always wear a mask as these cleaners can be toxic, and also wear a mask when you’re cleaning mildew in indoor spaces.
To prepare the solution you need to mix 3 quarts of water and 1 quart of oxygen bleach with a quart of liquid dishwasher that is ammonia-free. You can also use vinegar in place of the bleach.
Spray the solution on the affected areas and allow it to sit for 15 minutes. Rinse the place thoroughly until all mildew residue is eliminated.
Repeat the steps if necessary. If it seems that the mildew cannot be removed, you may need to sand the wood deck.
The best way to deal with mildew is to prevent it, so the best way to do this is to treat the wood once in a while. Use oil-based sealers to treat the wood every 5 years or so. This will help repel moisture.